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US 7,905,954 B2Granted
Nanosized particles of benzimidazolone pigments
AssigneesXerox Corporation, National Research Council of Canada
InventorsRina Carlini, Darren Andrew Makeiff
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Abstract
A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated derivative of an aromatic acid; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
Claims22
A nanoscale pigment particle composition, comprising:
- a benzimidazolone pigment, and
- a sterically bulky stabilizer compound associated non-covalently with the benzimidazolone pigment, wherein the sterically bulky stabilizer compound comprises an aromatic acid derivative;
- wherein presence of the sterically bulky stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
Dependencies are inferred from the claim text.